Concrete-form for curbs, walks, &amp;c.



A. R. TETERS.

CONCRETE FORM FOR CURBS, WALKS, &c.

APPLICATlON FILED FEB. 6,1914.

Patented May 25, 1915.

3 SHEETS-SHEET I.

A. R. TETERS. CONCRETE FORM FOR CURBS, WALKS, &'c.

APPLICATION FILED FEB. 6, |914.

www@ Patented May 25, 1915.

3 SHEETS-SHEET 2.

A. R'. TETERS.

CONCRETE FORM FOR CURBS, WALKS, c.

jmls', Yatented May 25, 1915.

3 SHEETS-SHEET 3.

I?? if APPLlCATION FILED FEB. 6, 1914.

Q/VHM con co ALVIN E. TETEBS, 0F BOISE, IDAHO.

CONCRETE-FORM FOB CUBIBS, WALES, &o.

Specification of Letters Patent.

Fatented Eday 25, 19H5.

Application le February e, 1914. Serial Ito. 816,980.

To all whom it may concern:

Be it known that I, ALVIN R. Terrine, a citizen of the United States, residing at Boise, in the county of Ada, State of idaho, have invented certain new and useful 1mprovements in Concrete-Forms for Gurbs, Walks, &c.; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

rihis invention relates to concrete forms for curbs, walks and the like.

The object of the invention resides in the provision of a form of the type named through the instrumentality of which the correct grade may be found and maintained and which Will permit a nish surface to be applied to the work with the form still in position as originally set so that the work with the finished surface incorporated will correspond in dimensions to the initial setting of the form.

A further object of the invention resides in the provision of a form of the type named through the instrumentality of which a concrete curb or walk may be laid with great economy of time and labor.

With the above and other objects in view the invention consists in the details of construction and in the arrangement and cornbination of parts to be hereinafter more fully described and particularly pointed out in the appended'claims.

ln describing the invention in detail reference will be had, to the accompanying drawings wherein like characters of reference denote corresponding parts in the several views, and in which- Figure k1 is a plan view of a form constructed in accordance with the invention and particularly adapted for laying con.

2, a transverse section through the form; Fig. 3, a view similar to Fig. 2 showing the manner of movin one side of the 'form to position the bo y or inner illing of the concrete to permit the application of a finished surface so that the curb with the finished-surface' incorporated will have dimensions determined by the original set of the form; Fig. 4, a fragment of what is shown in Fig. 3 with the finish face applied; Fig..5,.a side elevation on an enlarged scale of the connection between oppositely disposed 'stake elements et the form; Fig. 6, a section on the line crete curbs. Fig.

6-6 of Fig. 5; Fig. 7, a perspective view ot one of the stake elements of the form; Fig. 8, a perspective view disclosing the interlocking construction of adjacent ends of the side members of the form; Fig. 9, a transverse section through a form embodying the invention and adapted for use in laying walks; Fig. 10, a perspective view partly in section of one of the stakes employed in the form shown in Fig. 9, and Fig. 11, a perspective view of a modified form ot stake for use in connection with a form adapted for use in laying walks.

Referring to the drawings the form for laying curbs is shown as comprising stake elements 15 and side elements 16. rFhe stake elements 15 are substantially semicylindrical in cross section and terminate at one end in a point 17 and at their other end in a tapering portion 18. In setting up the form. the stake elements 15 are driven into the ground in spaced rows and corresponding stakes of each row are disposed op osite each other and connected by a bri ge member A. This vbridge member A consists of tapering socket elements 19 having longitudinal ilanges 20 which are pivotally secured between the arms of a U-shaped bar 2l by means of. clamping bolts 22 whereby said sockets may be adjusted into diderent angular relations to the bar 21. These socket members 19 detachably receive the upper tapering ends respectively of opposite stakes 15 and in this manner said stakes are secured together in a desired angular relation to each other. '.lhe stakes 15 which are positioned on the street sidev of the curb are provided centrally with a lug 24, while the stakes 15 which are positioned on the walk side of the curb are provided with spaced lugs 25 disposed respectively above and below the lug 24 when the form 1s set up.

The side members 16 of the form are made up of a plurality oit interlocking secy tions each of which comprises a fiat plate like body portion 26 to one side of which is secured terminal longitudinal ribs 27 and 28 and intermediate longitudinal ribs 29 and 30, the last named ribs lloeing disposed in slight spaced relation to form a groove l 31. The ribs 27, 28, 29 and 30 project a slight distance beyond one end of the body 26 and terminate a slight distance inward of the other end of said body. A. sheet metal facing 32 covers the side of the body 26 opposite to the ribs-27, 28, 29 and 30 and j this facing is carried around the ribs 27 and The end edges ofthe facing 32 are flush with the end edges of the body 26 so that a socket 33 is formed at the end of the various ribs which terminates short of the adjacent end' of the body which sockets 33 are adapted to receive the projecting end portions of respective ribs to interlock the sections of the side members together as will be obvious. The side members 16 on the street side of the curb are supported in proper position by engaging the lugs 24 in the grooves 31 of respective sections of the side members. The side lnembers 16 on the walk side of the curb are supported in proper position by engaging same between the lugs 25. It will of course be understood that before the side members are applied the stakes l5 are positioned to produce the proper grade by sighting same from grade stakes. In order to apply the facing to the curb on the street side thereof the side members 16 on the corresponding side of the curb are forced inwardly at their upper end by means of wedges 34 as clearly shown in Fig. 3. After the material has partially set with the side members-disposed as shown in Fig. 3 the side member on the street side of the curb is returned to its original position and the facing material poured between the side member and the body of the curb which has previously set as shown in Fig. 4.

In the modified form of the invention shown in Figs. 9 and 10 tle bridge connection between the stakes is dispensed with and each stake is provided with a lug 35 disposed relatively near its upper end. The sections of the side members in the modiied form of the invention are provided on one side with longitudinal ribs 36 forming a groove 37 in which the lugs 35 are adapted to be detachably engaged to support the side members in proper position. The side members in the modified form are covered with sheet metal in a manner similar to the side members previously described so as to form the necessary socket for interlocking the ends of the sections of the side members, it being noted that corresponding ends of the ribs 36 project beyond one end of the section of the side member while the other corresponding ends of the ribs are disposed inwardly of the other end of the section of the side member in a manner similar to the construction disclosedin Fig. v8. The stakes 15 in the modified-form shown in Figs. 9 and 10 are provided with transverse passages 38 just below the lugs 35. A pick or other suitable tool may be inserted in these passages and the stakes rotated to disengage the lugs 35 from the grooves 37 to permit rows of stakes,

the removal of the side members when the walk is only partially-set. It will also-be obvious that the stakes 15 can be removed when the walk is only partially set under similar conditions whereby the work of laying the walk can be advanced with. great rapidity with the use of only` a limited length of the form.

In Fig. 11 there is shown a modified form of stake-for use in setting up a walk form. This stake is provided with spaced lugs 39 and 40 between which may be supported side members 41 without the necessity yof providing ribs on one side of the sections of said side member.

It will be noted that in all the types of form previously described it is possible to remove the form from the work as soon as the concrete is partially set without any danger ofvdisturbing or marring the same.

1. A concrete form comprising a pair of and side members detachably interlocking with each row of stakes respectively, the interlocking connection between the stakes and side members being releasable by a partial aXial rotation of said stakes.

2. A concrete form comprising a pair of rows of stakes, side members formed of a plurality, of sections having longitudinal ribs on the faces thereof adjacent the stakes, said ribs having one end projecting beyond the adjacent end of thesection and their kther ends disposed inwardly of, the other section, a metallic sheathing covering the section and ribs and having its end edges Hush with the end edges of the section whereby sockets are formed at one end of the'ribs to receive the projecting ends of the ribs of an adjacent section, and lugs on the stakes interlocking with the sections of the side members to support the latter in position.

3. A concrete form comprising a pair of rows of stakes, lugs on said stakes respectively, and side members detachably engaged by said lugs, said lugs being disengaged from the side members by partial axial rotation of the stakes.

4. A concrete form comprising a pair of rows of stakes, side members provided with grooves in the face 'thereof adjacent the stakes, and lugs on the stakes engaged in said grooves and movable out of the grooves by partial rotation of the stakes.

In testimony whereof, I aflix my signature, in the presence of two witnesses.

ALVIN R. TETERS.

Witnesses:

S. M. MISHEY, O. J. CARON. 

